Liberals want college to be affordable to all regardless of economic status.It's really very simple. Conservatives consider education to be science, math, engineering, and computers. Liberals consider education to be feelings, social consciousness, and political correctness. Naturally, they're going to think anyone emphasizing STEM at the expense of feelings is trying to destroy "education".
Conservatives want kids to graduate from college with careers that can pay off student loans. Liberals want the loans to just be forgotten.
So do conservatives. Conservatives, though, believe non-college options should be emphasized for those who do not flourish in a classroom setting. You should not have to take on 4 years of sitting in a classroom to earn a living.